As a homeowner, you may be wondering when to stop the constant repairs and decide to replace your furnace.

A furnace is one of the most important parts of the mechanical systems that make your home a comfortable and safe place to live. However, furnaces are not designed to last forever. In fact, they are designed to have a lifespan of about 15 to 25 years in a home.   

It is advisable to replace and install a new furnace instead of repairing a very old one. Sometimes, continuing to do patchwork repairs on an older furnace will do more harm than good, and cost you more money in the long run.

Choosing when to replace a furnace can definitely be daunting, but not to worry, we’ve got a few tips that will help you figure out when to replace your furnace.

Signs It’s Time to Replace a Furnace


  • New or strange noises from the furnace

Noises such as rattling, popping, and screeching are signs that indicate you need a new furnace. These noises arise as a result of fluctuations in the furnace temperature, loose ducts, damaged belts, or a severe gas emission issue in the furnace.

  • Temperature fluctuations in the home

Furnace replacement should be considered when there is a sudden change in temperature in the rooms of your home.  This normally occurs when the furnace is older than 15 years of age; over time, it will become less efficient and will lose its ability to distribute heat equally to all parts of your home.

  • Soot around the furnace register

With low humidity, soot is accompanied by dry air in the home which can damage wood flooring, chairs, or shelves. As a homeowner, if you notice excess dust and soot in your home, this is an indication that your old furnace is malfunctioning which could cause a fire. It might also result in the release of carbon monoxide. This is serious and extremely dangerous. Call the experts now!

  • Change in furnace flame color

The flames of the furnace when newly installed are usually blue. If these flames change to a yellow color and start to produce a bad odor, then there’s likely to be gas leakage. This is dangerous. Start making plans to replace the furnace ASAP and call a professional. 

  • Cracks around the furnace

Homeowners who experience cracks on the outside of the furnace should start thinking of replacing it.

Furnace Repair Costs

When a furnace reaches 15 years old, you will observe the total cost of repair projects increase as well, sometimes to more than half the cost of installing a new furnace. If this is the case, you’re better off replacing it with a new one.  Other than for the savings on repair, there will also be a reduction in your energy bills. Go ahead and replace your furnace, you’ll be able to enjoy a more comfortable home temperature.

By installing a new home furnace or heating system, you’ll improve your home’s comfort levels and value. Think you need a new furnace? Contact us at Triad Mechanical Services for more information by calling (770) 682-0075.